钢筋混凝土梁的无机加固胶性能试验研究  

Experimental study on performance of inorganic strengthening agglutinant used for reinforced concrete beam

作　　者：王旻[1] 覃维祖[1] 

机构地区：[1]清华大学土木工程系,北京100084

出　　处：《混凝土》2009年第6期56-58,共3页Concrete

摘　　要：针对树脂基加固胶耐火性差的缺点所研制的一种化学激发胶凝材料,用作钢筋混凝土梁加固用的无机加固胶,具有耐高温、隔热性能好的特点,对2根钢筋混凝土梁进行对比试验,分析实际加固效果。结果表明,与未加固构件相比,使用该无机加固胶加固的钢筋混凝土梁在钢筋屈服前的刚度提高了1.4倍,三点抗弯梁的极限荷载提高22%,最大挠度提高50%。A kind of chemical exciting cementitious material used as inorganic for reinforced concrete beam, which is developed in allusion to bad fire resistance of resin-based strengthening agglutinant,has advantages dealt with high strength,strong corrosion resistance,good fire resistance and high thermal insulation.It was shown by testing on 2 girders that compared to the no strengthened beam,rigidity of the beam reinforced by the inorganic strengthening agglutinant was increased by 1.4 times,limit load on beam by 3 point bending was increased by 22%,the maximum flexivity was increased by 50%, which is higher than that of the common reinforced concrete beam markedly.

关 键 词：化学激发胶凝材料 无机加固胶 钢筋混凝土梁 玻璃纤维增强塑料 

分 类 号：TU528.01[建筑科学—建筑技术科学]